Crushing and grinding machine



June 7, 1949. efwv; RUIQDLE cnusnme AND GRINDING MACHINE 3 Sheets-Sheet2 Filed Nov. 26, 1945 June 7, 1949. w RUNDLE CRUSHiNG AND GRINDINGMACHINE s Shee ts-Sheet 3 Filed Nov. 26, 1945 George Wliuwdle;

Patented June 7, 1949 UNITED STATES I PATENT omen: cittishmo m ifiomcmonmt George W. Roadie, Edit Angl6, l2al1, ossiguor to Rudolph- L.Pummdg, James sullen,

all of Lot Angeles omit.

3ndsilvey Thi invention relates to cf'iis'hli'igfind grind iiighieohoiiisoi and ha as it ofi'rhaty' otjeot the rovision of o maohiiiowhit-in is taftimiiarly at glicabl fof use iii the dohiotit eisiiooal ofgot a'g;

Another oojeot it to provide a ortishet and grinaegwhioh aaoptea to toaoiiliea to the conventional hitoheh shut and to a sewer iiho ahaoperated to fiet i-e'dutioh of refu e food stiiffs' by a ci'iishiiig andgi indiiig 'aetloh in soon fhiofl that the ioiind irleltfidm may tomooted into the sewer main and thus to dishosed of.

Another object is to provide a dii'islief it"nd giindef iii homo atriasimilott ouhotanoes may he initially" crushed one than siibjocted to agrinding action so to tofoddt ''i-i'h Eiib'sttiflfi into s'iiificifi' y"fine oo'r'ti'olet 5% to poniiit thoii being iiitrodudd into a tower oioethrough the uisiil titft stniomr'ez Anothf ohjoot it to otoi iae a'iitsliiiig and grinding meohaiiiofii of tho above character em bootingan arrangement or crooning toilets and a g'tiiidi'i'i'g' mochanisin inthan feolatoihent of woffior bfokn hattfi may to reodii'y' etioota.

A fdithr object is to oroviae a finishing and grinding machine tvliihthe tarts are to formed and arrahg'a as to be readily prod-hood andassembied and whih tnaohine l highly enicieiit in operation-t With thefoi goingotjotts in View, togthet with such othi objots and advantages:as may subsequntiv aiiifleai, the invention fsidS in tho parts and iiithe ofribiiifitin, oofistruttioh 93nd arrangement of lfilits hef'liiaitfdefiiibd and claimed, and illustrated by way" of example in theaccompanying drawings", in which:

Fig. 1 is a view in vortiogl' "sootioii, hartly in elevation of theftisliifig and grinding mac-hm;

Fig. 2 is aoiogtamot the goat tianmission mechanism iiiuot ateo Fig: 1;

Fig. 3- it a detail horizontal sect-ion taken on the lih 3 3 at Fig. 1;

Fig. 4 is a viw ifi mi iev than or the (Hustl iflg and grindifi"i'hlidfiis'r'ii with the housin thereof line -4'--4 of Fig i: g

Fig. 5 ifs a heisiiett'i've View or a stationary grinding element;

Fig. 6 is a iieitootive viow'oi stationary filli block designed tobfisdcidted-with the gi'ind in eiemeht shown in Fig.- 5 and with rotaryrinding" iollerii:

Fi '7 is a perspective View oi a oi'ushmg tenor; Fig. 8 is a detail inend elevation taken- Oh the line B ll of Fig. 1, as soon in t edirection ii'itiiin voi tiool section taken on the thetetotitrarrangement of a pair of crushing roiiors; and

- g; 9" SS7 a mom view of the" pair or oft-thing v parts of the machine236 mounted and efiflsd monitor :5 and through a nodhy the end themotions A- and B bein as by bolts In engaging flanges II and I: on theseotiono A mid B rospeetively; sections C and ti bein ooniieotodtogetherby bolts :3 connoottng flQfi l4 and IE on the sections C and D: thesections D and E being connected togethot by bolts l6 engaging flangesl1 and I8 on the Sta-13 tions D and E, whi'lo the sections A and B' arecollectively" connected to the united sections D and E by bolts ispassing through. flanges 20 and 2 I on the sections A and B and engagingWall 'poi' tions 22 and 23 oh the sections D and E respo tivly'. The'se'tiotis A and B constitute a 02$ iitg tot on elctrio motor 24'.

The interior (if the housing formed by the set? trons C, 1 3 and E isdivided into chambers 25 and 26 by a partition 21 formed collectively ofpor thin of the sections G, D and E; the chamber 25 containing thecrushing and grinding mech anisxh of the machine, while the chamber 26contains a transmission mechanism for driving the trashing and grindingmechanism as will presently be dciibed and is designed to contain asuitalol'o lubricant.

The dflve shaft 28 or the motor 24 extends into is journaued in abearing 29 carried in a standard 39 formed integral with the section E,-and mounted on the drive shaft 29 is a S'fiui goat 3i meshing with agear wheel 32 on a stud shaft 33 journalled in and extending tlaro'ixghthe upper end portion of the standard '3 A toothedgettiwheel 34 mountedon the Stud shaft 33- meshs with ti, gear "wheel 35 on a shaft 36'extndi'hg through the partition 21 acrosstheartition 3'1 sepomt in; thechamber 25 from a gear chamber at foifild on the end wan 3'9 of thehousing soo tions 6 and D opoosite the partition 21. Tho gear wheel 34also meshes with a gear Wheel M on a shoot 6! whioh; extnds through abushing in the partition?! across the chamber 25 and is j'ti'i-fialld atits outer iid iii a bearing 4: oar wall 39 of the s'eotions D and E. Ttloiitt end of the shait 3B is fittod with a gosh" Wheel 43 in tho ohambotwith a corresponding gear wheel 44 on a shaft 45 extending through thepartition 31 and across the chamber 25 with its opposite end journalledin the partition 27 as indicated at 46 in Fig. 9.

Mounted on the shafts 36 and 45 is a pair of complementary crushingrollers 41 and 46 formed with longitudinally extending teeth a ofangular cross section with adjacent teeth defining an angular channel I)therebetween; the crushing ,rollers being arranged in offsetcircumferential relation to each other so that on rotation thereof theteeth of one of the rollers will move in and out of the angular spacesdefined by the teeth of the companion roller. The crushing rollers aredisposed in such spaced relation to each other as to afford a clearancebetween the faces of a tooth and the tooth a surfaces defining theopposed channel b of the adjacent roller, as particularly shown in Fig.4.

Mounted on the shaft 4| in the chamber 25 is a pair of opposed toothedfrusto-conical grinding rollers 49 and 58 having circular marginalportions 5| and 52 respectively which extend into circular recesses 53and 54 formed in the opposed faces of the partition 2? and the outer endwall '39 of the housing in close proximity to the margins of therecesses. Teeth c and d on the tapered faces of the rollers 4'9 and 50extend longitudinally and radially thereof.

The interior ends of the grinding rollers 49 and 5D abut a spacingcollar 55 on the shaft 40 which collar has tapered end portions 6 and fleading inwardly from the mid-center of the collar to the ends thereofwhich lies contiguous the inner end portions of the teeth and d of thegrinding rollers.

Arranged within the chamber 25 and projecting between the grindingrollers 69 and 59 is a stationary grinding element 56 having taperedside walls formed with teeth g and 72 arranged with the teeth extendingdownwardly at an inclination to the horizontal and in oblique relationto contiguous teeth c and d of the grinding rollers 49 and 59. The outeredge of the element 55 is formed with a V-groove 57. The grindin element3 is arranged in the chamber 25 with its teeth g and it slightly spacedfrom the teeth 0 and d of the rollers 49 and 59 and with the Walls ofthe channel 5'! spaced from the tapered walls 6 and f of the collar 55.

A filler block 58 is arranged in the chamber 25 opposite the grindingelement 55 and has inclined side walls 2' and a leading .to alongitudinal V-groove 59 on the reduced edge of the block. The block 58is arranged in the chamber 25 with the inclined walls 2' and 9' thereofspaced a short distance from contiguous opposed teeth 0 and d of thegrinding rollers 49 and 59 and with the surfaces of the groove 59slightly spaced from the inclined surfaces e and ,f of the collar 55.

The upper ends it and Z of the grinding element 56 and the filler block58 respectively are inclined downwardly to afford a hopper-likearrangement to feed materials between the grinding rollers 49 and 50 andthe fixed grinding element 56. The grinding element 56 and filler block58 are demountably secured in place within the housing by bolts m and 11respectively, as particularly shown in Fig. 4.

The upper end of the section C is formed with an intake opening 66through which materials to be crushed or ground may be fed to thechamber 25 above the crushing rollers 47 and 48 the opening 60 beingpreferably encircled by an annular threaded neck 6| adapted to bescrewed 4 into engagement with the outlet of a sink or hopper. The lowerend of the chamber 25 opens to discharge through an outlet passage 62adapted to be connected to a waste pipe leading to any suitable point ofdischarge, Such as a sewer.

Means are provided for delivering wash water to the interior of thehousing which is here shown as embodying a spray nozzle 63 opening tothe chamber 25 through the section C above the crushing rollers 47 and48, which nozzle is attached to a conduit 64 leading from a cutoff.valve 65 attached to a water feed pipe 66 leading from any suitablesource of water supply under pressure. Also connected to the dischargeside of the valve 65 is a conduit 67 which leads to the outlet passage62 to direct flushing water to the latter for the purpose of augmentingdischarge of ground materials from the machine. The valve 65 is ofconventional construction and embodies a stem 68 fitted with a handle 69connected to one end of a manually operable lever 10 fitted with ahandle H; the lever being pivoted at 72 and being operable to swing thearm 69 to efiect opening and closing of the valve 65. The lever 70 isadapted to operate an electric switch 13 to close electric circuitthrough conductors l4 connecting with the terminals of the electricmotor 24 so that on operating the lever 16 to open the valve 65 theswitch 13 will be closed to direct current to the motor and on operatingthe lever 10 to close the valve 65, the switch 13 will be opened to cutoff the current to the motor.

In the operation of, the invention when it is desired to effect crushingand grinding of material such as garbage, the lever 10 is swung from theposition shown in full lines in Fig. 4 to the positionindicated indotted lines so as to close the switch 73 and open the valve 65,whereupon the motor 24 will be actuated so as to drive the shaft 25 andthe train of gears 3|, 32, 34, and and thereby revolve the shafts 36 and4|; revolution of the shaft 35 acting through the gears 43 and 44 todrive the shaft in a direction opposite that of the shaft 36. Thecrushing rollers 47 and 48 being fixed in the shafts 36 and 45 arerevolved therewith and move in the direction indicated by the arrows inFig. 4. Rotation of the shaft 4| drives the grinding rollers 49 and 5D.The materials to be reduced are fed through the opening into the chamber25 where they are engaged by the crushing rollers 4'! and 48 and fedtherebetween where coarse and hard materials such as bones are subjectedto a crushing action. The materials after passing between the crushingrollers are fed between the grinding rollers 49 and 50 and the toothedgrinding element 56 where the materials are subjected to the grindingaction and reduced sufiiciently to be readily passed to dischargethrough the outlet 62. During this operation of the machine jets ofwater are delivered into the upper portions of the chamber 25 above therollers 41 and 48 through the nozzles 63 and at the same time a streamof water is delivered to the outlet 62 from the pipe 61 so as to eifectfiushing of the ground materials and augmenting their discharge from themachine. After termination of a crushing and grinding operation the handlever in is restored to the full line position shown in Fig. 4 therebyopening the switch '13 to stop the motor 24 and closing the valve toterminate the flow of water to the machine.

While I have shown and described a specific embodiment of my invention Ido not limit myself to the exact details of construction set forth, andthe invention embraces such changes, modifications and equivalents ofthe parts and their formation and arrangement as come within the purviewof the appended claim.

I claim:

In a crushing and grinding machine, a hous ing having an intake openingin its upper end and an outlet passage in its lower end, a pair ofcooperative crushing rollers on horizontal axes in the upper portion ofsaid housing contiguous the intake opening, a pair of rotatable conicalgrinding rollers mounted on a shaft in said housing arranged with theirtapered faces extending toward each other, the conical rollers beinglocated beneath the crushing rollers and mounted with their axesparallel to the axes of the crushing rollers, radially extending teethon the tapered faces of said grinding rollers, a grinding element fixedin the housing on one side of the grinding rollers and having inclinedside walls extending between and slightly spaced from the toothedtapered faces of said grinding rollers, downwardly inclined teeth onsaid inclined faces, extending in oblique relation to the contiguousteeth on the grinding rollers, a filler block fixed in the housing onthe opposite side of the grinding rollers and having inclined side facesoverlying contiguous opposed teeth of the grinding rollers, a collar onthe shaft abutting the inner ends of REFERENCES CITED The followingreferences are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 12,977 Wilson May 29, 1855 66,536Thomas July 9, 1867 996,958 Wallick July 4, 1911 l,%59,7l3 Beggs June26, 1 1,968,515 Coble et al. July 31, 1934 2,172,886 Gable Sept. 12,1939 FOREIGN PATENTS Number Country Date 572,572 Germany Mar. 18, 1933

